The Deeds of the Dukes of Normandy
The Gesta Normannorum Ducum [The Deeds of the Dukes of Normandy] is a landmark medieval chronicle tracing the rise and fall of the Norman dynasty from its early roots through the pivotal events surrounding the Norman Conquest of England. Originally penned in Latin by the monk William of Jumièges shortly before 1060 and later expanded at the behest of William the Conqueror, the work chronicles the deeds, politics, battles, and leadership of the Norman dukes, especially William’s own claim to the English throne. The narrative combines earlier historical sources with firsthand information and oral testimony to present an authoritative account of Normandy’s transformation from a Viking settlement into one of medieval Europe’s most powerful realms. William’s history emphasizes the legitimacy, military prowess, and governance of the Norman line, framing their expansion, including the conquest of England, as both divinely sanctioned and noble in purpose. Later chroniclers such as Orderic Vitalis and Robert of Torigni continued the history, extending the coverage into the 12th century, providing broader context on ducal rule and its impact. Today this classic work remains a foundational source for understanding Norman identity, medieval statesmanship, and the historical forces that reshaped England and Western Europe between 800AD and 1100AD.
Available at Amazon in eBook and Paperback format.
Paternal Family Tree: Reginar aka Percy
Maternal Family Tree: Helene du Donjon 1095-1189
On 23rd April 1224 William "The Younger" Marshal 2nd Earl Pembroke (age 34) and [his mother] Eleanor Plantagenet Countess Pembroke and Leicester (age 9) were married. She by marriage Countess Pembroke. The difference in their ages was 25 years. She the daughter of [his grandfather] King John of England and [his grandmother] Isabella of Angoulême Queen Consort England (age 36). He the son of William Marshal 1st Earl Pembroke and Isabel Clare Countess Pembroke. They were fifth cousins.
In 1238 [his father] Simon de Montfort 6th Earl of Leicester 1st Earl Chester (age 30) and [his mother] Eleanor Plantagenet Countess Pembroke and Leicester (age 23) were married at Westminster Palace [Map]. She by marriage Countess of Leicester. She the daughter of [his grandfather] King John of England and [his grandmother] Isabella of Angoulême Queen Consort England (age 50). He the son of [his grandfather] Simon "Elder" Montfort 5th Earl of Leicester and [his grandmother] Alix Montmorency. They were half third cousins. He a great x 2 grandson of King Henry I "Beauclerc" England.
In 1244 Guy Montfort Count Nola was born to [his father] Simon de Montfort 6th Earl of Leicester 1st Earl Chester (age 36) and [his mother] Eleanor Plantagenet Countess Pembroke and Leicester (age 29). He a grandson of King John of England.
In 1264 [his father] Simon de Montfort 6th Earl of Leicester 1st Earl Chester (age 56) was created 1st Earl Chester. It isn't clear whether this creation took place before or after the Battle of Northampton or the Battle of Lewes.
On 14th May 1264 the army of [his father] Simon de Montfort 6th Earl of Leicester 1st Earl Chester (age 56) including Gilbert "Red Earl" Clare 7th Earl Gloucester 6th Earl Hertford (age 20), Henry Hastings (age 29) and Nicholas Segrave 1st Baron Segrave (age 26) defeated the army of [his uncle] King Henry III of England (age 56) during the Battle of Lewes at Lewes [Map].
King Henry III of England, his son, the future, King Edward I of England (age 24), Humphrey Bohun 2nd Earl Hereford 1st Earl Essex (age 60), [his uncle] Richard of Cornwall 1st Earl Cornwall (age 55), John "Red" Comyn 1st Lord Baddenoch (age 44), Philip Marmion 5th Baron Marmion (age 30) and John Giffard 1st Baron Giffard Brimpsfield (age 32) were captured. John Warenne 6th Earl of Surrey (age 33), John Balliol (age 56), Robert Bruce 5th Lord Annandale (age 49), Roger Leybourne (age 49) and [his uncle] William de Valence 1st Earl Pembroke fought for the King. [his uncle] Guy Lusignan was killed. Fulk IV Fitzwarin (age 44) drowned. Bishop Walter de Cantelupe (age 73) was present and blessed the Montfort army before the battle.
On 4th August 1265 the army loyal to [his uncle] King Henry III of England (age 57), led by his son the future King Edward I of England (age 26), supported by Gilbert "Red Earl" Clare 7th Earl Gloucester 6th Earl Hertford (age 21), Warin Basingburne and John Giffard 1st Baron Giffard Brimpsfield (age 33) defeated the rebel army of [his father] Simon de Montfort 6th Earl of Leicester 1st Earl Chester (age 57) at the Battle of Evesham.
Roger Leybourne (age 50) fought and reputedly saved the King's life.
Adam Mohaut rescued the King.
Alan de Plugenet of Kilpec fought for the King.
Simon de Montfort 6th Earl of Leicester 1st Earl Chester was killed. Earl of Leicester, Earl Chester forfeit. His son [his brother] Henry Montfort (age 26) was also killed.
Hugh Despencer (age 41) was killed by Roger Mortimer 1st Baron Mortimer of Wigmore (age 34). Baron Despencer extinct. It may not have been created as a hereditary barony.
Simon Beauchamp (age 31), Ralph Basset (age 50), William Devereux (age 46), Hugh Troyes, Richard Trussel, Peter Montfort (age 60), William Mandeville, William Crepping, William Birmingham, Guy Balliol and Thomas Astley (age 50) were killed. Henry Hastings (age 30), Humphrey Bohun (age 44), Nicholas Segrave 1st Baron Segrave (age 27), John Vesci, John Fitzjohn and Guy Montfort Count Nola (age 21) were captured.
John Vesci was wounded and taken prisoner.
Become a Member via our Buy Me a Coffee page to read more.
In April 1266 Guy Montfort Count Nola (age 22) escaped from Windsor Castle [Map] in which he had been imprisoned following his capture at the Battle of Evesham.
After 23rd August 1268 Guy Montfort Count Nola (age 24) was created 1st Count Nola by King Charles Capet of Sicily (age 41) as a reward for his performance at the Battle of Tagliacozzo
On 13th March 1271 Henry "Almain" Cornwall (age 35) was murdered while attending mass at the Chiesa di San Silvestro, Viterbo by his cousins [his brother] Simon "Younger" Montfort and Guy Montfort Count Nola (age 27) in revenge for the deaths of their father [his father] Simon and older brother [his brother] Henry at the Battle of Evesham.
The murder was carried out in the presence of the Cardinals, who were conducting a papal Election, King Philip III of France (age 25), and King Charles of Sicily (age 43). The Montfort brothers were excommunicated.
Henry "Almain" Cornwall was buried in Hailes Abbey [Map].
The deed is mentioned by Dante Alighieri some forty years after in the Divine Comedy who placed Guy de Montfort in the seventh circle of hell.
New Chronicle by Villani Chapter 39. 13th March 1271. And now we return to our chief subject — how was slain Count Henry, earl of Cornwall (age 35), brother [cousin] of King Edward, in revenge for this, as we said before. The court was greatly disturbed, giving much blame therefor to King Charles, who ought not to have suffered this if he knew thereof, and if he did not know it he ought not to have let it go unavenged. But the said Count Guy (age 27), being provided with a company of men-at-arms on horse and on foot, was not content only with having done the said murder; forasmuch as a cavalier asked him what he had done, and he replied, "J'ai fait ma vangeance," [I took my revenge] and that cavalier said, "Comment? Votre père fut trainé;" [How? Your father was dragged] and immediately he returned to the church, and took Henry by the hair, and dead as he was, he dragged him vilely without the church; and when he had done the said sacrilege and homicide, he departed from Viterbo, and came safe and sound into Maremma to the lands of Count Rosso, his father-in-law. By reason of the death of the said Henry, Edward, his brother, very wrathful and indignant against King Charles, departed from Viterbo, and came with his followers through Tuscany, and abode in Florence, and knighted many citizens, giving them horses and all knightly accoutrements very nobly, and then he came into England, and set the heart of his said brother in a golden cup upon a pillar at the head of London Bridge over the river Thames, to keep the English in mind of the outrage sustained. For the which thing, Edward, after he became king, was never friendly towards King Charles, nor to his folk. After like manner, Philip, king of France, departed with his folk, and came and dwelt many days in Florence; and when he was come into France, he buried the body of the good King Louis, his father with great honour, and had himself crowned with great solemnity at Rheims.
Divine Comedy Canto 12. Then I turned me to the Poet, and he said, "Let him now be first, and I second." A little further on the Centaur stopped above some folk who far as the throat were seen to issue from that boiling stream. He showed to us at one side a solitary shade, and said, "He cleft, in the bosom of God, the heart that still is honoured on the Thames1." Then I saw folk, who out of the stream held their head, and even all their chest; and of these I recognized many. Thus ever more and more shallow became that blood, until it cooked only the feet: and here was our passage of the foss.
Note 1. In 1271, Prince Henry, son of [his uncle] Richard of Cornwall, was stabbed during the mass, in a church at Viterbo, by Guy of Montfort, to avenge the death of his father, Simon, Earl of Leicester, in 1261. The heart of the young Prince was placed in a golden cup, as Villani (vii. 39) reports, on a column, at the head of a bridge in London.
In or before 1274 Guy Montfort Count Nola (age 29) and Margherita Aldobrandesca were married. He the son of Simon de Montfort 6th Earl of Leicester 1st Earl Chester and Eleanor Plantagenet Countess Pembroke and Leicester (age 58).
Around 1274 [his daughter] Anastasia Montfort was born to Guy Montfort Count Nola (age 30) and [his wife] Margherita Aldobrandesca. She a great granddaughter of King John of England. She married Romano Orsini and had issue.
Chronicle of Abbot Ralph of Coggeshall
The Chronicle of Abbot Ralph of Coggeshall (Chronicon Anglicanum) is an indispensable medieval history that brings to life centuries of English and European affairs through the eyes of a learned Cistercian monk. Ralph of Coggeshall, abbot of the Abbey of Coggeshall in Essex in the early 13th century, continued and expanded his community’s chronicle, documenting events from the Norman Conquest of 1066 into the tumultuous reign of King Henry III. Blending eyewitness testimony, careful compilation, and the monastic commitment to record-keeping, this chronicle offers a rare narrative of political intrigue, royal power struggles, and social upheaval in England and beyond. Ralph’s work captures the reigns of pivotal figures such as Richard I and King John, providing invaluable insights into their characters, decisions, and the forces that shaped medieval rule. More than a simple annal, Chronicon Anglicanum conveys the texture of medieval life and governance, making it a rich source for scholars and readers fascinated by English history, monastic authorship, and the shaping of the medieval world.
Available at Amazon in eBook and Paperback format.
On 13th April 1275 [his mother] Eleanor Plantagenet Countess Pembroke and Leicester (age 60) died at Montargis Abbey.
On 23rd April 1287 Guy Montfort Count Nola (age 43) was captured during the Battle of the Counts.
In 1288 Guy Montfort Count Nola (age 44) died in a Sicilian prison having been captured the year before at the Battle of the Counts.
[his daughter] Pietro di Vico Montfort was born to Guy Montfort Count Nola and Margherita Aldobrandesca. She a great granddaughter of King John of England.
Kings Wessex: Great x 6 Grand Son of King Edmund "Ironside" I of England
Kings England: Grand Son of King John of England
Kings Scotland: Great x 5 Grand Son of King Duncan I of Scotland
Kings Franks: Great x 13 Grand Son of Charles "Charlemagne aka Great" King of the Franks King Lombardy Holy Roman Emperor
Kings France: Great x 7 Grand Son of Hugh I King of the Franks
Kings Duke Aquitaine: Great x 10 Grand Son of Ranulf I Duke Aquitaine
Great x 4 Grandfather: Simon Montfort
Great x 3 Grandfather: Amaury Montfort Count Évreux
Great x 4 Grandmother: Agnès of Normandy
Great x 2 Grandfather: Simon "Chauve" Montfort 4th Count Évreux
Great x 1 Grandfather: Simon Montfort
Great x 2 Grandmother: Mathilde Unknown Countess Évreux
GrandFather: Simon "Elder" Montfort 5th Earl of Leicester
Great x 4 Grandfather: Robert Beaumont 1st Earl of Leicester Count Meulan
Great x 3 Grandfather: Robert Beaumont 2nd Earl of Leicester
Great x 4 Grandmother: Elizabeth Capet Countess Leicester, Meulan and Surrey
Great x 2 Grandfather: Robert Beaumont 3rd Earl of Leicester
Great x 4 Grandfather: Raoul Gael
Great x 3 Grandmother: Amice Gael Countess Leicester
Great x 1 Grandmother: Amicia Beaumont
Great x 4 Grandfather: Robert Grandesmil
Great x 3 Grandfather: William Grandesmil
Great x 2 Grandmother: Petronilla Grandesmil Countess Leicester
Father: Simon de Montfort 6th Earl of Leicester 1st Earl Chester 2 x Great Grand Son of King Henry I "Beauclerc" England
Great x 2 Grandfather: Mathieu I Montmorency
Great x 1 Grandfather: Bouchard V Montmorency Grand Son of King Henry I "Beauclerc" England
Great x 4 Grandfather: King William "Conqueror" I of England
-2 x Great Grand Son of King William "Conqueror" I of England
Great x 3 Grandfather: King Henry I "Beauclerc" England
Son of King William "Conqueror" I of England
Great x 4 Grandmother: Matilda Flanders Queen Consort England
Great x 2 Grandmother: Aline Fitzroy
Daughter of King Henry I "Beauclerc" England
GrandMother: Alix Montmorency Great Grand Daughter of King Henry I "Beauclerc" England
Guy Montfort Count Nola Grand Son of King John of England
Great x 4 Grandfather: Fulk "Réchin" Anjou 4th Count Anjou
Great x 3 Grandfather: Fulk "Young" King Jerusalem
Great x 4 Grandmother: Bertrade Montfort Queen Consort France
Great x 2 Grandfather: Geoffrey Plantagenet Duke Normandy
Great x 4 Grandfather: Elias I Count Maine
Great x 3 Grandmother: Ermengarde of Maine Countess of Anjou
Great x 4 Grandmother: Matilda Chateau Du Loir Countess Maine
Great x 1 Grandfather: King Henry "Curtmantle" II of England
Grand Son of King Henry I "Beauclerc" England
Great x 4 Grandfather: King William "Conqueror" I of England
-2 x Great Grand Son of King William "Conqueror" I of England
Great x 3 Grandfather: King Henry I "Beauclerc" England
Son of King William "Conqueror" I of England
Great x 4 Grandmother: Matilda Flanders Queen Consort England
Great x 2 Grandmother: Empress Matilda
Daughter of King Henry I "Beauclerc" England
Great x 4 Grandfather: King Malcolm III of Scotland
Great x 3 Grandmother: Edith aka Matilda Dunkeld Queen Consort England
Great x 4 Grandmother: Margaret Wessex Queen Consort Scotland
GrandFather: King John of England
Son of King Henry "Curtmantle" II of England
Great x 4 Grandfather: Guy William Poitiers VIII Duke Aquitaine
Great x 3 Grandfather: William "Troubadour" Poitiers IX Duke Aquitaine
Great x 4 Grandmother: Hildegarde Burgundy Duchess Aquitaine
Great x 2 Grandfather: William "Saint" Poitiers X Duke Aquitaine
Great x 4 Grandfather: William Rouerge Duke Narbonne
Great x 3 Grandmother: Philippa Rouerge Duchess Aquitaine
Great x 4 Grandmother: Emma Mortain Duchess Narbonne
Great x 1 Grandmother: Eleanor of Aquitaine Queen Consort Franks and England
Great x 3 Grandfather: Aimery Chatellerault Viscount Châtellerault
Great x 2 Grandmother: Aenor Chatellerault Duchess Aquitaine
Great x 4 Grandfather: Bartholomew Île Bouchard
Great x 3 Grandmother: Dangereuse Ile Bouchard Viscountess Chatellerault
Mother: Eleanor Plantagenet Countess Pembroke and Leicester
Daughter of King John of England
Great x 4 Grandfather: William Angoulême V Count Angoulême
Great x 3 Grandfather: Wulfgrin Angoulême II Count Angoulême
Great x 4 Grandmother: Vitapoy Benauges Countess Angoulême
Great x 2 Grandfather: William "Taillefer" Angoulême VI Count Angoulême
Great x 4 Grandfather: Roger "The Poitevin" Montgomery Viscount Hiemois
Great x 3 Grandmother: Pontia La Marche Countess Angoulême
Great x 4 Grandmother: Almodis La Marche
Great x 1 Grandfather: Aymer Angoulême I Count Angoulême
GrandMother: Isabella of Angoulême Queen Consort England
Great x 4 Grandfather: Philip I King of the Franks
Great x 3 Grandfather: Louis VI King of the Franks
Great x 4 Grandmother: Bertha Gerulfing Queen Consort France
Great x 2 Grandfather: Peter Courtenay
Great x 4 Grandfather: Humbert "Fat" Savoy II Count Savoy
Great x 3 Grandmother: Adelaide Savoy Queen Consort France
Great x 4 Grandmother: Gisela Ivrea Countess Savoy
Great x 1 Grandmother: Alice Courtenay Countess Angoulême
Great x 4 Grandfather: Miles Courtenay
Great x 3 Grandfather: Renaud Courtenay
Great x 4 Grandmother: Ermengarde of Nevers
Great x 2 Grandmother: Elizabeth Courtenay
Great x 3 Grandmother: Helene du Donjon